小行星、彗星与矮行星
Asteroids, Comets & Dwarf Planets
认识太阳系中除行星以外的其他天体：小行星（主要是位于火星和木星之间的岩石天体）、彗星（靠近太阳时会长出明亮尾巴的冰质天体），以及流星体、流星和陨石（进入地球大气层的太空岩石）。
Identify other objects in the solar system beyond planets: asteroids (rocky bodies mostly between Mars and Jupiter), comets (icy bodies with tails when near the Sun), and meteoroids/meteors/meteorites (space rocks that enter Earth’s atmosphere)
学习证据 / Evidence
- 描述小行星是主要分布在火星和木星之间小行星带中的岩石天体。
- 描述彗星是靠近太阳时会长出发光尾巴的冰质天体。
- 解释流星体（在太空中）、流星（在大气层中燃烧产生的光迹）和陨石（落到地球表面）之间的区别。
- Describe asteroids as rocky bodies mostly found in the belt between Mars and Jupiter
- Describe comets as icy bodies that develop a glowing tail when they approach the Sun
- Explain the difference between a meteoroid (in space), meteor (streak of light in atmosphere), and meteorite (lands on Earth)
评估问题 / Assessment
如果{{name}}看到了一颗流星，能否解释那其实是一颗微小的太空岩石在地球大气层中燃烧，并说出它与彗星的区别？
If {{name}} saw a shooting star, could they explain that it’s actually a tiny space rock burning up in our atmosphere — and tell you the difference between that and a comet?